Liquid-fuel burner.



J. R. DONNELLY. LIQUID FUEL BURNER. APPLICATION FILLED APR. 26, 191;

Patented Apr. 22, 1913.

UNITED STATES .TE orric JOHN DONNELLY, OF WAYNE, INDIANA, ASS IGNOR TO WAYNE PROCESS COMPANY; OF FORT WAYNE, INDIA-NA, A CORPORATION.

LIQUID-FUEL BURNER.

To all whom it may concern Be it known that 1, JO N R. DONNELLY,

I a citizen of the- United States, residing at a cheap, simple and eflicientburner forburni-n hydrocarbon liquids which are rich in car on, without decomposing the oil Figure 1 is aside elevational view of a device cql structed according to my invenair tight. =Within this sleeve is supported t ion; Fig. 2, a central long1tudinalsection of the burner of; Fig. 1; Fig. 3, an end view ofthe burner and Fig. 4,1an elevation in section of a modified 'form of my inven;

tion.

member or sleeve formed of suitable h ate sleeve is closed and rendered substantiallya removable tube 3 lugs 4, which are cured to tube 3.or .are integral therew th forming'spacersi b'y which thesleeve 1- and tube 3 are. spaced toforni a-n'air space or passageway 5 between the same' Tube3 projects beyond the open end of sleeve 1 a suitable distance and 'it forms the come bustion chamber of the burner, the. space or passageway 5 servingto admit air, in

the direction of the'arrows into the com p w h I bustion chamber. x

A fuel coil 6 :is supported-QnsleBYQ. one end of which is suitably connected to fuel reservoir 7 and the other endof which is provided with a suitable elbow 8150 which a suitable nozzle 9 is' conne'cted." Nozzle? passes through the wall .ofjhood 2-and is disposed a suitable distance" forwardly of,

i the forward open end,ofcombustioncham her 3. A. suitable valve'il 0 in. elboW 'Sserves Specification of Letters Patent. Application filed April as, 1911. Serial No. 623,392.

. ing the nozzle vapor and depositing carbon in the vaporamong 'others eferringtoithe drawings", is a p I draws the outs de alr through the air space .terial to'one extremity of whichis secured-1 tubes" n 0 the forward end oft-he a cap or hood 2 by which said end ot the! to control the passage of the vapor .lwhich is discharged from the nozzle 9.

Reservoir 7 is provided with a suitable air supply throug pipe connect-ions 11, y the pressure of which the fuel is forced through coil 6. i 1 i Hood 2 is provided'with one for more doors 12 through which access to the in} terior of the hood for the purpose oif c leanhad.

l I may also insert between sleeve 1 and the coil 6 a layer of asbestos 01f other refrac-j tory material-13 (Fig. 4) andl may insert tubes 14 of suitable diameter between the sleeve 1 and tube' 3 toserve as conductors of heated air into the combustionphamber,

thereby preventing overheatingx ofthe coil.

In practice the coil 6 is first eated to the desired or proper temperature by suitable means; then the air pressure is turned into the reservo r" and va Patented Apr. 22, 1913.

or for any other'purpo's e ve 1Q is opened. The

liquid in passing through the heated coil is vaporized and the vapor discharged ti ite the eatths 'ra "e i ted a ing to continuously heat-t ecoil and mainnozzle 9' intofcombustion chamber 3} here; 1

Itam continuous vaporization of theffuel in "the coil. The 'pressui'ebehind*tlie vapor combustion chamber where it mixes with the vapor to support its combustion. The

air in passing through the s ace-5 becomes more or less heatedby-t-he ingperfcct ombustion of the fuel. 1

- The moving heated air in space 5 serves toinsulate the vapor coil from the combustion' tube, thereby preventing overheating of the coil. The use of the asbestos layer 1 13 will also assist in the prevention of overheating. of the coil The tubes 1 and 3, coil'6" and. nozzle 9 will, of course, be properly proportioned I as to diameter and lengthto accomplish my cat. generated. in the combustion chamber, thereby greatly aiding thecombustion of the vapor and; producing a high degree of heat and insururpose, and a-great many changes might;

ment of'the parts described'without departconfine myself to the such -,li ht changes and alterations as fairly fall witdiin the spirit and scope of my invention.

\Vhat I claim is:

1. Av liquid fuel burner comprising a combustion tube, a second tube surrouiuling the combustion tube and spaced therefrom,

means secured to one end of ill) second tube 1 for closing said end and a fuel coilcncirchng the second tube and a nozzle having a connection with the coil and adapted to discharge vapor into the combustion tube.

A liquid fuel burner comprising a fuel coil, a sleeve within the coil, means secured on one end of the sleeve for closing the same,

\ a combustion member within the sleeve and in spaced relation therewith whereby an air space is formed between the sleeve and combustion member, and a nozzle connected to the fuel coil and adapted to discharge vapor into the combustion member, the discharg I ing vapor drawing outside air through said air space to insulate the sleeve from the combustionmember and to support the comi. r liquid fuel burner comprising a fuel coil, a combustion member within the coil, a nozzle connected to the coil and adapted to discharge vapor into the combustion mem-.

ber wherein the vapor is combusted to heat the same and also heat the coil wheieby the fuel is vaporized in the coil, and means between the coil and combustion member proriding a passageway between the same for the admission of outside air-into one end of the combustion member to support the combustion of the vapor and to insulate from said member.

5. A liquid fuel burner comprising'a fuel coil, a cylindrical memberwithin the coil open at its forward'end, a combustion tube within the member and having its forward end projecting beyond the forward end :of the annular member, means closingthe rear end of the member and a nozzle within said means and connected to the coil and adapted to discharge vapor from-the 'coil into the rear end'of thecombustion tube, the-combusting vapor discharging from the'forard end of the tube.

In witness whereof I hereunto Sign my name this 24th day of April, 1911,

' JOHN R. DONNELLY.

\Vitnesses HELEN F. GLENN, EDWIN M. HULsE.

the coil 

